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13 commits

Author SHA1 Message Date
Slobodan Predolac
160ab9d7f6 Replace experimental_infallible_new with compile-time flag 
The runtime option aborted on every OOM, breaking new(std::nothrow)
semantics. Replace with configure-time --enable-cxx-infallible-new
(default off): when on, throwing new aborts (size logged) and
nothrow returns null; when off, standard new_handler + bad_alloc /
null behavior is preserved. Under LTO the on-path lets the compiler
prove operator new is no-throw.
 2026-06-06 09:50:37 -04:00
Slobodan Predolac
cc7be7fbe2 Remove safety check abort mallctl 2026-06-02 13:24:23 -04:00
guangli-dai
6200e8987f Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
Guangli Dai
c9ac1f4701 Fix a bug in C++ integration test. 2022-09-16 15:04:59 -07:00
Qi Wang
cd5aaf308a Improve the failure message upon opt_experimental_infallible_new. 2022-05-17 16:07:40 -07:00
Qi Wang
391bad4b95 Avoid abort() in test/integration/cpp/infallible_new_true. 
Allow setting the safety check abort hook through mallctl, which avoids abort()
and core dumps.
 2022-04-25 11:29:32 -07:00
David Goldblatt
4452a4812f Add opt.experimental_infallible_new. 
This allows a guarantee that operator new never throws.

Fix the .gitignore rules to include test/integration/cpp while we're here.
 2021-06-24 12:22:51 -07:00
Yinan Zhang
21dfa4300d Change assert_* to expect_* in tests 
```
grep -Irl assert_ test/ | xargs sed -i \
    's/witness_assert/witness_do_not_replace/g';
grep -Irl assert_ test/ | xargs sed -i \
    's/malloc_mutex_assert_owner/malloc_mutex_do_not_replace_owner/g';

grep -Ir assert_ test/ | grep -o "[_a-zA-Z]*assert_[_a-zA-Z]*" | \
    grep -v "^assert_"; # confirm no output
grep -Irl assert_ test/ | xargs sed -i 's/assert_/expect_/g';

grep -Irl witness_do_not_replace test/ | xargs sed -i \
    's/witness_do_not_replace/witness_assert/g';
grep -Irl malloc_mutex_do_not_replace_owner test/ | xargs sed -i \
    's/malloc_mutex_do_not_replace_owner/malloc_mutex_assert_owner/g';
```
 2020-02-19 16:03:16 -08:00
Jason Evans
f408643a4c Remove extraneous parens around return arguments. 
This resolves #540.
 2017-01-20 21:43:07 -08:00
Jason Evans
c4c2592c83 Update brace style. 
Add braces around single-line blocks, and remove line breaks before
function-opening braces.

This resolves #537.
 2017-01-20 21:43:07 -08:00
Jason Evans
8115f05b26 Add nullptr support to sized delete operators. 2017-01-17 14:30:15 -08:00
Jason Evans
ffbb7dac3d Remove leading blank lines from function bodies. 
This resolves #535.
 2017-01-13 14:49:24 -08:00
Dave Watson
2319152d9f jemalloc cpp new/delete bindings 
Adds cpp bindings for jemalloc, along with necessary autoconf settings.
This is mostly to add sized deallocation support, which can't be added
from C directly.  Sized deallocation is ~10% microbench improvement.

* Import ax_cxx_compile_stdcxx.m4 from the autoconf repo, seems like the
  easiest way to get c++14 detection.
* Adds various other changes, like CXXFLAGS, to configure.ac.
* Adds new rules to Makefile.in for src/jemalloc-cpp.cpp, and a basic
  unittest.
* Both new and delete are overridden, to ensure jemalloc is used for
  both.
* TODO future enhancement of avoiding extra PLT thunks for new and
  delete - sdallocx and malloc are publicly exported jemalloc symbols,
  using an alias would link them directly.  Unfortunately, was having
  trouble getting it to play nice with jemalloc's namespace support.

Testing:
Tested gcc 4.8, gcc 5, gcc 5.2, clang 4.0.  Only gcc >= 5 has sized
deallocation support, verified that the rest build correctly.

Tested mac osx and Centos.

Tested --with-jemalloc-prefix and --without-export.

This resolves #202.
 2016-12-12 18:36:06 -08:00